Velocity Pressure in Ducts Solution

STEP 0: Pre-Calculation Summary
Formula Used
Velocity Pressure in Ducts = 0.6*Mean Velocity of Air^2
Pv = 0.6*Vmean^2
This formula uses 2 Variables
Variables Used
Velocity Pressure in Ducts - (Measured in Pascal) - Velocity Pressure in Ducts is the pressure required to accelerate air from zero velocity to some velocity (V) and is proportional to the kinetic energy of the air stream.
Mean Velocity of Air - (Measured in Meter per Second) - Mean Velocity of Air is defined as the time average of the velocity of a fluid at a fixed point, over a somewhat arbitrary time interval T counted from some fixed time t0.
STEP 1: Convert Input(s) to Base Unit
Mean Velocity of Air: 15 Meter per Second --> 15 Meter per Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Pv = 0.6*Vmean^2 --> 0.6*15^2
Evaluating ... ...
Pv = 135
STEP 3: Convert Result to Output's Unit
135 Pascal -->13.7614678899083 Millimeter Water (4 °C) (Check conversion here)
FINAL ANSWER
13.7614678899083 13.76147 Millimeter Water (4 °C) <-- Velocity Pressure in Ducts
(Calculation completed in 00.020 seconds)

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6 Basics of Ducts Calculators

Equivalent Diameter of Circular Duct for Rectangular Duct when Quantity of Air is Same
Go Equivalent Diameter of Duct = 1.256*((Longer Side^3*Shorter Side^3)/(Longer Side+Shorter Side))^0.2
Equivalent Diameter of Circular Duct for Rectangular Duct when Velocity of Air is Same
Go Equivalent Diameter of Duct = (2*Longer Side*Shorter Side)/(Longer Side+Shorter Side)
Reynolds Number in Duct
Go Reynolds Number = (Diameter of Circular Duct*Mean Velocity of Air)/Kinematic Viscosity
Quantity of Air given Velocity
Go Quantity of Air = Velocity of Air*Cross-Sectional Area of Duct
Velocity Pressure in Ducts
Go Velocity Pressure in Ducts = 0.6*Mean Velocity of Air^2
Reynolds Number given Friction Factor for Laminar Flow
Go Reynolds Number = 64/Friction Factor in Duct

Velocity Pressure in Ducts Formula

Velocity Pressure in Ducts = 0.6*Mean Velocity of Air^2
Pv = 0.6*Vmean^2

Example of Velocity Pressure

When a fan is moving air through a duct system, two types of pressure are encountered: velocity pressure and static pressure. The sum of these pressures is referred to as total pressure. Velocity pressure is the pressure caused by air in motion. Units of pressure are expressed in mm of water. Velocity pressure can be calculated from the difference between the total pressure and static pressure.

How to Calculate Velocity Pressure in Ducts?

Velocity Pressure in Ducts calculator uses Velocity Pressure in Ducts = 0.6*Mean Velocity of Air^2 to calculate the Velocity Pressure in Ducts, The Velocity Pressure in Ducts formula is defined as the pressure required to accelerate air from zero velocity to some velocity (V) and is proportional to the kinetic energy of the air stream. Velocity Pressure in Ducts is denoted by Pv symbol.

How to calculate Velocity Pressure in Ducts using this online calculator? To use this online calculator for Velocity Pressure in Ducts, enter Mean Velocity of Air (Vmean) and hit the calculate button. Here is how the Velocity Pressure in Ducts calculation can be explained with given input values -> 1.4028 = 0.6*15^2.

FAQ

What is Velocity Pressure in Ducts?
The Velocity Pressure in Ducts formula is defined as the pressure required to accelerate air from zero velocity to some velocity (V) and is proportional to the kinetic energy of the air stream and is represented as Pv = 0.6*Vmean^2 or Velocity Pressure in Ducts = 0.6*Mean Velocity of Air^2. Mean Velocity of Air is defined as the time average of the velocity of a fluid at a fixed point, over a somewhat arbitrary time interval T counted from some fixed time t0.
How to calculate Velocity Pressure in Ducts?
The Velocity Pressure in Ducts formula is defined as the pressure required to accelerate air from zero velocity to some velocity (V) and is proportional to the kinetic energy of the air stream is calculated using Velocity Pressure in Ducts = 0.6*Mean Velocity of Air^2. To calculate Velocity Pressure in Ducts, you need Mean Velocity of Air (Vmean). With our tool, you need to enter the respective value for Mean Velocity of Air and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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